Non-woven fabric material and application thereof

Abstract

The invention discloses a non-woven fabric material and application thereof. The non-woven fabric material is prepared by the following steps: S1, oxidizing cellulose to obtain 2,3-dicarboxycellulose,and carrying out condensation reaction on the 2,3-dicarboxycellulose and (4-vinylphenyl-4'-methylenecarboxyphenyl) iodonium-terminated polyvinylpyrrolidone under the action of heating and a dehydrating agent to obtain modified cellulose A; S2, oxidizing cellulose to obtain 6-carboxyl cellulose, and performing cationic modification to obtain modified cellulose B; and S3, mixing the modified cellulose A and the modified cellulose B to obtain mixed fibers, and performing pretreatment, web forming, reinforcement and chemical finishing to obtain the product. According to the non-woven fabric material, the color absorption capacity of the color absorption fibers is improved without influencing the decontamination effect of a detergent, so that the color crossing problem in the fabric washing process is effectively prevented.

Description

technical field [0001] The invention belongs to the field of textile engineering, and in particular relates to a nonwoven material and its application. Background technique [0002] During the washing process of the fabrics that people wear every day, the dyes on the surface of the fabrics will fall off and enter the washing solution. With the agitation of the washing operation, they will transfer to the surface of other fabrics in the washing solution, causing the cross-color phenomenon we see with the naked eye. Generally speaking, dyes used in fabrics have a strong affinity for fabrics, and dyes can be combined with fabric fibers through van der Waals forces, hydrogen bonds, and chemical bonds, so that dye molecules are fixed on the fibers, which is the so-called dyeing process. The dyeing process is reversible. During the washing process, some of the links between the dyes and the fabric fibers can be untied, and the dye molecules return to free molecules, but the free d...

AI Technical Summary

Problems solved by technology

[0005] However, the color-absorbing sheet based on this idea has two serious defects: the first, in the actual washing process, the distance between the fabrics is very small, and even often the surfaces of the two fabrics are closely attached, while the above-mentioned The electrostatic adsorption relied on in the thinking is a passive adsorption method, which acts like a filter, and can only absorb the dye molecules near the color-absorbing film, but cannot effectively absorb the dye molecules far away from the color-absorbing film; therefore, from the fabric The dyes that come off on the top are often cross-dyed on the fabrics that are closer to each other before being absorbed by the color-absorbing sheet

When the color-absorbing sheet absorbs the surfactant instead of the target dye, the color-absorbing ability of the color-absorbing sheet will decrease, reducing its anti-cross-color effect

In addition, the color-absorbing sheet absorbs the surfactant, resulting in a decrease in the concentration of the effective substance of the detergent, which will also reduce the decontamination effect of the detergent.

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